Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14